Fix misuse of pretty_constraint, fix downstream test (poetry-core) #4932
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| @@ -69,13 +70,21 @@ def _export_requirements_txt( | |||
| content = "" | |||
| dependency_lines = set() | |||
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| for dependency_package in self._poetry.locker.get_project_dependency_packages( | |||
| project_requires=self._poetry.package.all_requires, dev=dev, extras=extras | |||
| for package, groups in itertools.groupby( | |||
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Can you walk me through this set of changes and why they are needed? I can follow the line-by-line, but I'm not sure I'm groking the bigger picture.
Also, this file is going to be removed in favor of the exporter plugin. Can you please make a PR against that repo as well?
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If you are wondering: I accidentally deleted my branch while porting the fix to the exporter plugin. Sorry about that. 😅
The changes in exporter.py are required because get_project_dependency_packages returns objects of type DependencyPackage, which consist of a Dependency and a Package. There can be multiple dependency packages containing the same package for different dependencies, e.g. package a(1.1) for dependency a(>=1.0) with markers sys_platform == "win32" and package a(1.1) for dependency a(>=1.1) with markers sys_platform == "linux". The changes are required in order to receive only one entry for a==1.1 in requirements.txt instead of two entries with different markers.
This behaviour can be observed in the following test cases:
test_exporter_can_export_requirements_txt_with_nested_packages_and_multiple_markers
expected:
bar==7.8.9 ; platform_system != "Windows" or platform_system == "Windows"
without changes:
bar==7.8.9 ; platform_system != "Windows"
bar==7.8.9 ; platform_system == "Windows"
test_exporter_can_export_requirements_txt_with_nested_packages_and_markers_any
expected:
a==1.2.3
without changes:
a==1.2.3
a==1.2.3 ; python_version < "3.8"
test_exporter_can_export_requirements_txt_pyinstaller
expected:
altgraph==0.17
without changes:
altgraph==0.17
altgraph==0.17 ; sys_platform == "darwin"
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Pull Request Check List
Resolves: #4919
The pretty_constraint fix in python-poetry/poetry-core@af08f1c broke a downstream test (test_exporter_can_export_requirements_txt_with_nested_packages_and_markers_any), exposing a misuse of the fact that pretty_constraint was not updated when setting the constraint. This PR fixes the downstream test by fixing the misuse.